Livestock and poultry feeds processed from genetically modified grains and oilseeds present no problems of safety or consumer risk, according to a study released by the Council for Agriculture Science & Technology (CAST). "Meat, milk and eggs produced by farm animals fed biotechnology derived crops are as wholesome, safe and nutritious as similar products produced by animals fed convention crops," CAST said The CAST task force which compiled the study examined regulatory risk assessments, looked at the results of feeding studies and examined what happens when animals consume DNA from various proteins.